644 research outputs found

    Epidemiological surveys of camel trypanosomosis in Al-jouf, Saudi Arabia based on PCR and ELISA

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    Trypanosomosis due to Trypanosoma evansi (surra) is a major enzootic disease of the dromedary camel. The present study was conducted to determine the prevalence of camel trypanosomosis in the northern part of Saudi Arabia with different methods of diagnosis (ELISA, PCR) and to compare the results to whose obtained previously with Card Agglutination Test for Trypanosomiasis (CATT/T.evansi). A total of 195 blood samples and 118 serum samples were used for molecular and serological investigation respectively. After analyses, 25% (49/195) and 3% (4/118) samples were positive using PCR and ELISA respectively. The variability of trypanosomosis was highly significant to the factor moving, location, breed and clinical signs with PCR. The discrepancy between PCR, CATT test and ELISA is likely due to antibodies degradation on spotted papers maintained several weeks at ambient temperature. This is the first molecular diagnosis report which gives a picture of camel trypanosomosis in Al-jouf, Saudi Arabia

    Is Indigenous Nation Building capable of strengthening and improving Indigenous holistic health outcomes:Retelling the Right to Health

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    The United Nations Declaration on the Rights of Indigenous Peoples (UNDRIP) has declared that Indigenous peoples and populations inherently possess a right to health. Such a right does not merely exist with reference to physical health. The General Assembly of the United Nations when adopting the UNDRIP requires the meaning of "health" to be expansive and also be characterised as a collective right. This article will provide a particular framework for understanding the right to health for Indigenous peoples as a collective right, which exists in a symbiotic relationship with the rights to greater self-determination and governance

    Effects of antiplatelet therapy on stroke risk by brain imaging features of intracerebral haemorrhage and cerebral small vessel diseases: subgroup analyses of the RESTART randomised, open-label trial

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    Background Findings from the RESTART trial suggest that starting antiplatelet therapy might reduce the risk of recurrent symptomatic intracerebral haemorrhage compared with avoiding antiplatelet therapy. Brain imaging features of intracerebral haemorrhage and cerebral small vessel diseases (such as cerebral microbleeds) are associated with greater risks of recurrent intracerebral haemorrhage. We did subgroup analyses of the RESTART trial to explore whether these brain imaging features modify the effects of antiplatelet therapy

    Does cumulative adverse socioeconomic exposure mediate the association of maternal mental ill health at birth and adolescent mental ill health at age 17? An analysis of the Millennium Cohort Study

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    BackgroundAdolescent mental health is a public health priority. Maternal mental ill health and adverse socioeconomic exposure (ASE) are known risk factors of adolescent mental ill health. However, little is known about the extent to which cumulative ASE over the life course mediates the maternal-adolescent mental health association, which this study aims to explore.MethodsWe analysed data from more than 5000 children across seven waves of the UK Millennium Cohort Study. Adolescent mental ill health was measured using the Kessler 6 (K6) and Strengths and Difficulties Questionnaire (SDQ) at age 17. The exposure was maternal mental ill health as measured by the Malaise Inventory at the child's birth. Mediators were three measures of cumulative ASE defined by maternal employment, housing tenure and household poverty. Confounders measured at 9 months were also adjusted for, these were: maternal age, maternal ethnicity, household poverty, maternal employment, housing tenure, maternal complications during labour and maternal education. Using causal mediation analysis, we assessed the cumulative impact of ASE on the maternal-adolescent mental ill health relationship between birth and age 17.ResultsThe study found a crude association between mothers' mental health at the child's birth and mental health of their children at age 17, however, when adjusting for confounders this association was reduced and no longer significant. We did not find an association between cumulative exposure to maternal non-employment or unstable housing over the child's life course and adolescent mental health, however, cumulative poverty was associated with adolescent mental ill health (K6: 1.15 (1.04, 1.26), SDQ: 1.16 (1.05, 1.27)). Including the cumulative ASE measures as mediators reduced the association between maternal and adolescent mental health, but only by a small amount.ConclusionsWe find little evidence of a mediation effect from cumulative ASE measures. Experiencing cumulative poverty between the ages of 3-14 was associated with an increased risk of adolescent mental ill health at age 17, suggesting actions alleviating poverty during childhood may reduce adolescent mental health problems

    Safety and Immunogenicity of Malaria Vectored Vaccines Given with Routine Expanded Program on Immunization Vaccines in Gambian Infants and Neonates: A Randomized Controlled Trial.

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    BACKGROUND: Heterologous prime-boost vaccination with chimpanzee adenovirus 63 (ChAd63) and modified vaccinia virus Ankara (MVA) encoding multiple epitope string thrombospondin-related adhesion protein (ME-TRAP) has shown acceptable safety and promising immunogenicity in African adult and pediatric populations. If licensed, this vaccine could be given to infants receiving routine childhood immunizations. We therefore evaluated responses to ChAd63 MVA ME-TRAP when co-administered with routine Expanded Program on Immunization (EPI) vaccines. METHODS: We enrolled 65 Gambian infants and neonates, aged 16, 8, or 1 week at first vaccination and randomized them to receive either ME-TRAP and EPI vaccines or EPI vaccines only. Safety was assessed by the description of vaccine-related adverse events (AEs). Immunogenicity was evaluated using IFNγ enzyme-linked immunospot, whole-blood flow cytometry, and anti-TRAP IgG ELISA. Serology was performed to confirm all infants achieved protective titers to EPI vaccines. RESULTS: The vaccines were well tolerated in all age groups with no vaccine-related serious AEs. High-level TRAP-specific IgG and T cell responses were generated after boosting with MVA. CD8+ T cell responses, previously found to correlate with protection, were induced in all groups. Antibody responses to EPI vaccines were not altered significantly. CONCLUSION: Malaria vectored prime-boost vaccines co-administered with routine childhood immunizations were well tolerated. Potent humoral and cellular immunity induced by ChAd63 MVA ME-TRAP did not reduce the immunogenicity of co-administered EPI vaccines, supporting further evaluation of this regimen in infant populations. CLINICAL TRIAL REGISTRATION: The clinical trial was registered on http://Clinicaltrials.gov (NCT02083887) and the Pan-African Clinical Trials Registry (PACTR201402000749217)

    Acceptance and commitment therapy processes and their association with distress in cancer: a systematic review and meta-analysis

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    Around 42% of individuals with cancer experience distress. Acceptance and Commitment Therapy (ACT) can reduce distress, but effects are small, and mechanisms unclear. This review aimed to identify associations between ACT processes and distress in cancer. Search terms included cancer, ACT processes, self-compassion, and distress. Six online databases and grey literature were searched to March 2022. Of 6555 papers screened, 108 studies were included with a total of 17195 participants. Five meta-analyses of seventy-seven studies were conducted. Random effects meta-analyses of correlations revealed higher scores on flexible processes (acceptance, present moment awareness, self-compassion) were associated with lower distress (rpooled = -0.24, -0.39, -0.48, respectively); whilst higher scores on inflexible processes (experiential avoidance, cognitive fusion) were associated with higher distress (rpooled = 0.58, 0.57, respectively). Meta-analyses displayed moderate-to-high heterogeneity with most studies assessed as low risk of bias. Meta-regressions revealed no significant moderators (stage, time since diagnosis, gender and age). This review provides a theoretically aligned evidence base for associations between ACT processes and distress in cancer, supporting elements of ACT theory and providing targeted directions for intervention development. Due to limited evidence, future research should focus on the under-investigated processes (self-as-context, values, committed action) and conducting mediation analysis of ACT processes on distress in cancer in controlled trials

    Measurement of the forward Z boson production cross-section in pp collisions at s=13\sqrt{s} = 13 TeV

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    A measurement of the production cross-section of Z bosons in pp collisions at s=13\sqrt{s} = 13 TeV is presented using dimuon and dielectron final states in LHCb data. The cross-section is measured for leptons with pseudorapidities in the range 2.0η4.52.0 \eta 4.5, transverse momenta pT20p_\text{T} 20 GeV and dilepton invariant mass in the range 60m()12060 m(\ell\ell) 120 GeV. The integrated cross-section from averaging the two final states is \begin{equation*}\sigma_{\text{Z}}^{\ell\ell} = 194.3 \pm 0.9 \pm 3.3 \pm 7.6\text{ pb,}\end{equation*} where the first uncertainty is statistical, the second is due to systematic effects, and the third is due to the luminosity determination. In addition, differential cross-sections are measured as functions of the Z boson rapidity, transverse momentum and the angular variable ϕη\phi^*_\eta

    Focus on 1,25-Dihydroxyvitamin D3 in the Peripheral Nervous System

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    In this review, we draw attention to the roles of calcitriol (1,25-dihydroxyvitamin D3) in the trophicity of the peripheral nervous system. Calcitriol has long been known to be crucial in phosphocalcium homeostasis. However, recent discoveries concerning its involvement in the immune system, anti-cancer defenses, and central nervous system development suggest a more pleiotropic role than previously thought. Several studies have highlighted the impact of calcitriol deficiency as a promoting factor of various central neurological diseases, such as multiple sclerosis, amyotrophic lateral sclerosis, Parkinson’s disease, and Alzheimer’s disease. Based on these findings and recent publications, a greater role for calcitriol may be envisioned in the peripheral nervous system. Indeed, calcitriol is involved in myelination, axonal homogeneity of peripheral nerves, and neuronal-cell differentiation. This may have useful clinical consequences, as calcitriol supplementation may be a simple means to avoid the onset and/or development of peripheral nervous-system disorders

    Mecanismes De Contamination Des Eaux Souterraines Dans Le Secteur Du Lac Mbeubeuss, Dakar, Senegal

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    The physicochemistry of groundwater in the immediate environment of the dump, and its surroundings, shows that the true value of the electrical conductivity of groundwater is close to 2000 μS / cm. The value of electrical conductivity that is greater than 2000 μS / cm demonstrates groundwater contamination through the Mbeubeuss Lake landfill, with chemical groundwater facies dominated by Sodium Chloride, Potassium Chloride, and Calcium Chloride. The study of the unsaturated zone of the aquifer and the relationship between the major chemical elements of groundwater, rainwater, and seawater made it possible to specify, on one hand, the sources of mineralization of the groundwater at the Mbeubeuss Lake site and its surroundings. Indeed, the situation close to the sea would suggest a considerable intake of salts by aerosols and sea spray. Based on contribution to this study, the influence of the old sediments of the dry Lake Mbeubeuss and the percolation of leachates resulting from the decomposition of garbage landfilled under the action of rainwater would be added. On the other hand, this study also made it possible to determine the main processes of controlling the mineralization of groundwater. This includes the marine inputs, the dissolution-precipitation of clay minerals present in the geological formations constituting the aquifer, the dilution- concentration, evaporation, and anthropogenic pollution
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